Mativ Holdings (MATV) CLO reports RSU tax-withholding share disposition

Rhea-AI Filing Summary

Mativ Holdings, Inc. reported a routine insider tax-related transaction by its Chief Legal Officer and Corporate Secretary, Mark W. Johnson. On March 19, 2026, 2,944 shares of common stock were withheld to cover tax obligations from vested RSUs, a non-market disposition. After this withholding, Johnson directly holds 125,113 shares of Mativ common stock.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

JOHNSON MARK W

(Last) (First) (Middle)

100 KIMBALL PLACE

SUITE 600

(Street)

ALPHARETTA GEORGIA 30009

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Mativ Holdings, Inc. [ MATV ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CLO and Corporate Secretary

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/19/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/19/2026		F		2,944(1)	D	$8.53	125,113	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. These shares represent the shares withheld to satisfy tax withholding obligations arising from the vesting of RSUs granted on March 19, 2025.

Remarks:

	Mark W. Johnson	03/23/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Mativ (MATV) report for Mark W. Johnson?

Mativ reported that Chief Legal Officer Mark W. Johnson had 2,944 shares of common stock withheld on March 19, 2026 to satisfy tax obligations from vested RSUs. This is a non-market tax-withholding disposition, not an open-market share sale.

How many Mativ (MATV) shares does Mark W. Johnson hold after this Form 4?

After the tax-withholding transaction, Mark W. Johnson directly holds 125,113 shares of Mativ common stock. The filing shows only a routine withholding related to RSU vesting, with no open-market purchases or sales reported in this Form 4.

Was the Mativ (MATV) Form 4 transaction an open-market sale of shares?

No, the Form 4 shows a tax-withholding disposition, not an open-market sale. 2,944 shares were withheld by the company to cover tax liabilities triggered by RSU vesting, a common administrative action tied to equity compensation.

What does transaction code "F" mean in the Mativ (MATV) Form 4 filing?

Transaction code “F” indicates payment of an exercise price or tax liability by delivering securities. In this case, 2,944 shares were withheld to satisfy tax obligations from RSUs vesting, rather than being sold on the open market for cash.

What role does Mark W. Johnson hold at Mativ (MATV) in this Form 4?

Mark W. Johnson is identified as an officer of Mativ Holdings, Inc., serving as Chief Legal Officer (CLO) and Corporate Secretary. The reported Form 4 transaction reflects routine equity compensation tax withholding associated with his executive role.